Fixture for die-cutting machines and the like



Nov. 6, 1923. 1,473,592

W. P. CARTWRIGHTT AL FIXTURE FOR DIE CUTTING MACHINES AND THE LIKE Filed June 2l. 1919 IMI@ HH MW i f ATTORNEY UNITED srnrrzsA PATENT.@ENCE WILLIAM P. CARTWEIGHT, oEfnE'rRo'I'r, MICHIGAN, ANn'JosEPII E. KELLER, OENEWA .i YoEK, N. Y., AssICNons .To KELLER MECHANICAL ENGEAvINs CoMPANY, Ior anooKLYN, NEW YORK, A `coaroKArIoN or NEW YORK. L

FIXTURE FOR DIE-CUTTING'MACHIN ES AND THE LIKE. y

` Application led June 21, 1919. Serial No. 305,854.

To all -zclzomy -z't may concern.'

Be it known that We, VVILLIAIII,A P. CART- wmsrrr, a citizen of the. United States, andk resident of Detroit, county of Wayne', and

and Jost-:PH F.. KELLER, a citizen of the United States, and resident we have shown oneform of ourdevicein,-the 55 accompanyingdrawings, of which Fig. 1, f isa -front .elevation of'the tixture, 'thetracerl and cutter portionsfof the machine 4 being;A` A shown in dotted lines; Fig. 2', represents a side view of the of New `York, county `and State of New York, jointly have invented certain new an-d 'useful Im iovements in Fixtures foi-,Dieutting lachines and the like, of

V,which the followinorf is aspecification.

invention re ates more particularly to die cutting machines, in which the model or pattern is of the same size as the die to be cut. In machines of this character, a tracer is provided for following the model and a correspondingly shaped cutter is adapted to the die in exact reproduction of the cutter.

model. Corresponding points of the tracer and cutter are located in the same planes at right anglesto lthe axes of the tracer and A reciprocating bed or face-,plate -is preferably mounted in the usual manner for movement transversely of the tracer and cutter parallel to a line joining the same, the

`Surfaceof the face-plate `being adapted to reciprocate or move an lesto the axes of n machines of this in a. plane at right the tracer and cutter. character, it is more or less difficult at times to properly locatev and hold the face: of the model and die in the same plane parallel to the surface of the face-plate, and parallel to the through corresponding 'points of the tracer and cutter. i

Furthermore, itis desirable to accurately locate corresponding portions of the model and die in planes parallel to a `plane passing model 'anddie respectively has foritsobjcct` through the axes ofspthe tracer and cutter. Our improved ,face-plate. for holding .the

the accurate and yproper locationrespcctively of the model and ldie in the positions above referred to, so"`that the die when `finished will an accurate reproduction of the model. Our iinprovement also clamping the model and die 'in the desired positions, said clamping means being readily accessible from the' front of the Work, so

4in the form of machine ihere shown recipro! planes passing 'insert hardened steel .angle members' 12 pref'- provides 'means for securelyl l `r"respec`tive faces tthe- As illustra ing, our Improved construction,

being shown in section;

top planI View,

plate and holdingl fixture,

a 'broken 4away corner of a sto block shown in perspective.

.Re erring and Fig. 4 shouts Y bed or facelplate.

of this type of machineare'located'one ab'o've the. face-plate.

and 8 in the usual or anypreferred manner.. A link and eye-bolt connection is made with the face-plateat 9 witha counter Weight for. balancingr the weightof the face-plate; which ca-tes vertically Our improvement l y pair of brackets ksecured to the .tace-plate,

kadapted forholding the model and a" corl; responding pair of brackets" similarlyrse= the face-plate 'for holding the die.' 9U

cured Ito Referring to Athe 'drawings it will be seen that the `b1ackets10` and 11,fon'e of-eac-h lof the .pairs referred to, are substantially ,ideuli tical, andare radapted tobc secured fixedly to the face-,plate sothat corresponding work;-v ing portions thereof-are alt a distance apa-rtv exactly equal -to lthe distancevfbetween the.` axes of the Itracer and cuttgn' Atthe .ior ward edge Aof these brackets, we pre'ferab'l-y*1L crably having ftheirffaces 13 ground-true in" th@ Same Plne and parallel tothe surface ',of the Ahice-'plate v3, "andfheh'ceparallel -to the# plane of reciprocation `Avvoff- "the' face-plateq A 1,3 ,of 4the angle ,members' forirlc These faces lugs, are tidal-)ted 'etto- 'a'ccvratelyflocate 'lie reciproca-ting y; face-plate -1.60'

with the fixture thereon,;thelmodel and die f Fig. I3, represents a.f '15.11

of 'the reciprocating Lface-4 to the :drawings 1, represents the pillar or support fortjhe reciprocating .Suitable slide ways-2 .are .j providedfor permitting reciprocation ofthe Yface-plate 3. transverselyof the tracer and. cutter spindles 4 and 5 respectively.` lt will' be seen that the tracer and cutter spindles Consists Primm-,Hy f. a ,1

lander-andrea' inicie-'f `same vertical plane, Aparallel to a l plane curately inserting and positioning the finished dies for luse in the drop hammer.

These planed surfaces are preferably utilized in locating the die block on our improved bracket member 11., and we preferably provide lugs or members 14 extending at right angles to the faces 13 of the lugs 12, for locating the die transversely of the face-plate 3. T hese lugs 14 may be suitably located on the brackets 10 and 11, preferably at the ends thereof as indicated in Figs. 1 and 4 of the drawings. The lugs or members 14 are adapted to cooperate with the planed edges of the die block, previously referred to and with atcorresponding edge or corner of the model to accurately position the model and die, so that corresponding portions thereof will lie` in the same vertical planes parallel to a line between corresponding points on the tracer and cutter, and at right angles to the surface of the face-plate.

Cooperating, respectively, with the fixed brackets 10 and 11, we provide similar brackets 15 and 16 adjustabl mounted upon the face-plate, but adaptedY to be secured thereto by means of bolts 1T operating in the usual T-groovcs or slots 18 in the face-plate 3. The brackets 15 and 16 are similarly rovided with angle lugs or members 12 lliaving corresponding faces 13 in the same vertical plane parallel with the surface of the face-plate and are adapted to hold the upper edges ofl the model and die respectively. Each of the brackets 15 and 16 is preferably provided with a pair of racks 19 secured thereto, one at each side thereof in parallel relation with the vertical edges of the faceplate 3. Each of the racks 19 is adapted to mesh with a pinion 20, two oppositely located pinions 20 being connected together by a rod or shaft 21,' whereb f they are adapted to be turned in unison. he projecting ends of the rods 21 are preferably si nared so that a wrench er handle may be app ied for turning the pinions 20 and raising or lowering the corresponding brackets 15 and 16. In this way it will be understood, that vthe brackets 15 and 16 may be moved toward or from the fixed-brackets 10 and 11, and adjusted to the model and die respectively.

Suitable awls 22 are prefably provided for holdingt e brackets-15 and 16 in temporarily adjusted positions when they are not secured to the face-plate by means of the clamping bolts 17.

-We preferably ing the model and die respectively against provide means for'clamp the positioning members 12, on the brackets i 10, 11, 15 an'd 16 so that they may reciprocate with the face-plate in planes parallel to a line between corresponding points `of. the tracer and cutter. The clamps are indicated in Fig. 2 of the drawings :1t-23. The-clamps 23 are preferably mounted in slots extending toward and from the surface of the faceplate, and each is preferably provided with a tubular internally threaded portion 24, adapted to cooperate with ascrew 25, the head of which projects into a socket 26 on the outer front edge of each of the brackets 10, 11, 15 and 16 substantially as indicated in Figs. l and 2 ofthe drawings. The heads of the bolts or screws 25 are st uared so that a socket wrench may be us Vthereon for moving the corresponding clamping members 23 into or out of clamping position with respectto the model or die. Obviously if the model or die is too thin to be clamped directly by the members 23, intervening blocks 27 may be employed in the usual or any preferred manner.

In `the operation of our improved fixture, it will be observed that the positioning lugs 14 have their working facesin the same Vertical plane on the respective brackets 10 and 11, as indicated by the dotted lines, which lines are parallel to a vertical line between corresponding points of the tracer and cutter. The brackets 15 and 16 are first moved upward away from vthe respective fixed brackets 10 and 11, and the pattern A is inserted and its face edge brought against the faceV 13 of the members 12, the bracket 15'v then being lowered to bring the corresponding members 12 thereof into cooperative relation with the. model.

' The model is then moved so that the corner or side edge is brought into contact with the member 14, thereby locating the model with respect to the tracer with its face para!` lel to the surface of the face-plate. The model is then clamped in position by the clamps23 of the two brackets 15 and 10 substantiall as indicated in Fig. 2. Similarly the die B is inserted between the brackets 11 and 16 and the face thereof brought against the faces 13 of the members 12 thereof, and the planed edge previously referred to is brought into contactA with the corresponding member 14, so as to accurately locate corresponding portions of the die and model in the same vertical planes parallel to a vertical line between the axes of the tracer and cutter, and equally distant from the 'surface ofthe face-plate. When thus positioned the die is secured by means of the corresponding clamps 23, of the brackets 11 and 16, the brackets 15 and 16 having been securely clamped to the faceplate 3 in position b means ofthe bolts 17.

When removing t 1e model or die, the respective brackets 15 and 16 may befshifted l -fixture comprising aftery being released from the face-.plate by turning the pinions 20 and maybe, held in temporarily adjusted positions by means of the pawls ions. y

We have Shown our improved positioning and clamping fixture inconnection with a duplicating die Acutting machine having a reciprocating face-plate or bed, but obviously it will be understood that modifications of our improvement may be adapted for other forms cf die cutting machine, and for different types of face-plates, therefore We do not Wish to be limited to the specific con- 22 engaging the teeth of the pin- Struction shown and described. F urther,

more, in defining the position of the tracer and cutter it` willi'be understood that normallv, theI planes o`f,cor1esponding portions of the tracer and cutter are at right angles to the axes cf the tracer and cutter.` But, .since in o erationthe tracer and cutter are l. In a die cutting machine or the like,

a fixture comprising a movable face-plate, bracketsV secured to the face-plate, Said brackets being provided with members having work holding faces facing toward and located in a plane parallel with and spaced from the surface of said face-plate, and means for clamping the Work against said faces. l

2. In -a die cutting machine or the like, a a face-plate movable in its own plane, brackets secured to said faceplate, work holding members supported by said brackets at a. fixed distance from the surface cf said face-plate, said members being provided with work supporting faces facing toward and located in a plane parallel Withthe surface of said face-plate, and

adjustable'clamping means for holding the .work against said Work supporting faces.

3. In a die cutting niachine or the like, provided with tracer and cutter sp1ndles, a iixturevcomprislng a face-plate mounted for movement in a plane'at right angles to the axes of said tracer and cutter spindles, brackets secured to said face-plate forisupporting the pattern and die respectively, means on said ,brackets cooperating with the respective faqes of the pattern and die for locating the same in -a plane parallel to the surface of said face-plate, means for locat' ing corresponding portions of the pattern `and `die in planes parallelito `a l,plane through the axes of thetracerfland .cutterIspind'lesgi` and means forcla'mping .the gpatternand :die

respectively ywhen so located.-

4. Indie cutti-ng,machineor'thelike, pro-y l Avided with tracer and cutterspmdIeS, a tix-` f ture comprisingr a ,face-plate mountedfffor* the tracer andcutter spindlesifor `su `reciprocation in a plane .at right. angleslto j the axes of said :tracer and cutter lsp`1ndles,f= .brackets permanently attached tosaidfacef-r yplate'andspace'd apart .the distance between!2 porting i respectively .the model and die lad)].ustablel;

.bracketsv mounted on lvthe face-plate for movement toward and from'and in :paralleliv relation to said permanentlyattached'brack 1 ets, Jfor accommodating models and diesofv.

die inthe same of recl'procation said brackets for different sizes, means lfor clamping ithelgad# l justablel jbrackets to the `face-plate When'-` properly adjustedto the model and diere. spectively, means on Asaid brackets for locatmg the respective faces .of fthe :modelxand vE plane parallel tcuthe `plane of saidl faceplate, ymea-ns on i. positioning the model and 1; dierespectively se thaty correspondngpcrtions thereof shall lie in the :same planewpar-fL c allel to a plane through tracer and cutter, the model and die cated and positioned.

5. In a die cutting melanger-the. like# cutter spindles provided with tracer and thevr axes ofth`e, and meansfor clamping@ respectively; when so lofA spaced apart a fixed distance`,rthe axes there-fA of beingln the same plane, and the corre,

and cutter bein locatedin planes at right angles to said sp1ndles,'the combination with a face-plate adapted' forreciprocationin a plane at right anglesto' said spindles and parallel to the line between the `spindles the surface of said face-plate lbeing paralle to the planes of the working portions of said tracer and cutter, of means mounted upon and carried by said face-plate for accurately locatingcorresponding portions respectively of the model and die in intersecting planes parallel respectively to the planelof rsaid spindles and tothe surface of said face-plate and vmeans for clamping the patternf nd die respectively'-when so located to reciprocate with said face-plate. y f

6. In a die cutting machineor the like, the ,combination of a reciprocatingl faceplate, brackets mounted thereon for supporting respectively the model and die Junction with saidlocating means for clam i ing the modeland die respectivelyto sa1d brackets. a

7. In a die cutting machine. or the 1ike,'

v1Q() spending Workingv portions of said tracer fx1 the combination with a tracer and cutter, of a face-plate adapted 'to be reciprocatetl transversely thereof` a pair of brackets secured to the face-plate at a distance from cach other equal to the distance between the tracer and cutter, a second pair of brackets, each adapted for adjustment toward and from one of the brackets first mentioned, and racks and pinions cooperating,Y between the tace-plate and the respective. adjustable brackets for adjusting the latter, substantially vas described.

8. In a die cutting machine or the like, the combination with a tracer and cutter, of a face-plate movable transversely thereof, a bracket tixed to said face-plate, a Second bracket mounted on the face-plate for adjustment toward and from said fixed bracket, racks ant"l pinions for adjusting the adjustable bracket and means for securing said adjustable bracket to the face-plate in adjusted position.

9. In a die cutting machine or the like, the combination with a tracer and cutter` of a face-plate movable transversely thereof, a bracket fixed to said face-plate, a second bracket mounted on the faceplate for adjustment toward and from said fixed bracket. racks and pinions for adjusting the adjustable bracket, means for securing said adjustable bracket to the Jface-plate in adjusted position, and pawls cooperating with said pinion for holdingr said adjustable bracket in temporary adjustment when the last named means are released.

10. In a die cutting machine or the like, the combination with a tracer and cutter, of a face-plate movable in a plane at right angles thereto, a fixed bracket secured to said face-plate, a second bracket mounted on said face-plate and adjustable with relation to'- the first named bracket, means on said brackets for holding the face of the Work in a plane parallel to the surface of the faceplate at a fixed distance therefrom, clamps for holding,r the work against said holding means on the brackets and means acceible through the outer edges of said brackets for securing said clamps.

1l. In a die cutting machine or the like, the combination with a tracer and cutter, f a face-plate movable in a plane at right angles to the axes of said tracer and cutter and in a direction parallel to a line joining corresponding points thereof, brackets on said face-plate for holding the model and die respectively, lugs or members on said brackets for accurately locating corresponding parts of the model and die in the same planes parallel to said line between the tracer and cutter, members on said brackets for holding the `faces of the modeland die in the^ same plane parallel to theplane of reciprocation of said face-plate, means for adjusting said brackets respectively te the model and die and means for clamping respectively the model and die against the cor responding holding faces on said brackets. W. P. CARTWRIGHT. JOSEPH F. KELLER. 

